tallboy vs chest of drawers

tallboy and chest of drawers both are nouns.

Word	Noun	Adjective	Verb	Adverb
tallboy	Yes	No	No	No
chest of drawers	Yes	No	No	No

As nouns, chest of drawers is a hypernym of tallboy; that is, chest of drawers is a word with a broader meaning than tallboy:

tallboy: a tall chest of drawers divided into two sections and supported on four legs
chest of drawers: furniture with drawers for keeping clothes

Other hypernyms of tallboy include bureau, chest, dresser.

tallboy (noun)	chest of drawers (noun)
a tall chest of drawers divided into two sections and supported on four legs	furniture with drawers for keeping clothes